package com.aop.example.DIY;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

@Aspect  //标注这个类是一个切面
public class AnnotationPointCut {

    @Before("execution(* com.aop.example.service.UserServiceImpl.*(..))")
    public  void before(){
        System.out.println("====方法执行前====");
    }

    @After("execution(* com.aop.example.service.UserServiceImpl.*(..))")
    public void after(){
        System.out.println("====方法执行后====");
    }

    //在环绕增强中,我们可以给定一个参数,代表我们要获取处理的切入点
    @Around("execution(* com.aop.example.service.UserServiceImpl.*(..))")
    public void around(ProceedingJoinPoint joinPoint) throws Throwable {
        System.out.println("环绕前");
        //Signature signature = joinPoint.getSignature();  //获得签名
        //System.out.println("Signature: " + signature);

        Object proceed = joinPoint.proceed();  //执行方法
        System.out.println("环绕后");

        //System.out.println(proceed);
    }


}
